CN112227963B - Anti-torsion sucker rod - Google Patents
Anti-torsion sucker rod Download PDFInfo
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- CN112227963B CN112227963B CN202011171725.9A CN202011171725A CN112227963B CN 112227963 B CN112227963 B CN 112227963B CN 202011171725 A CN202011171725 A CN 202011171725A CN 112227963 B CN112227963 B CN 112227963B
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- coupling
- sucker rod
- sliding sleeve
- buffer
- upper coupling
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- 230000008878 coupling Effects 0.000 claims abstract description 107
- 238000010168 coupling process Methods 0.000 claims abstract description 107
- 238000005859 coupling reaction Methods 0.000 claims abstract description 107
- 238000007789 sealing Methods 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 11
- 230000003139 buffering effect Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 15
- 230000009471 action Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pivots And Pivotal Connections (AREA)
- Springs (AREA)
Abstract
The invention provides an anti-torsion sucker rod in the technical field of sucker rods, which comprises a sucker rod body, wherein one end of the sucker rod body is connected with an upper coupling, the outward end of the upper coupling is provided with a containing cavity, a plurality of ball grooves are arranged on the upper coupling where the containing cavity is arranged along the circumferential direction, balls are rotatably connected in the ball grooves, a lower coupling is connected in the containing cavity, the lower coupling is provided with a clamping groove matched with the balls, the upper coupling is slidably connected with a sliding sleeve, a limiting step is arranged on the sliding sleeve relative to the balls, an extension spring is arranged between the sliding sleeve and the upper coupling, one end of the extension spring is connected with the upper coupling, the other end of the extension spring is abutted against the limiting step, the sliding sleeve on the outer side of the limiting step is provided with a clamping groove, and when the extension spring is compressed by the sliding sleeve, the ball can be clamped into the clamping groove, and the outward end of the upper coupling is also connected with a fixing ring for limiting the sliding sleeve; the invention has the advantages of good torsion resistance, long service life and low production cost.
Description
Technical Field
The invention belongs to the technical field of sucker rods, and particularly relates to a sucker rod.
Background
The sucker rod is an important tool in the process of oil field exploitation, the sucker rod is a slender rod piece of an oil pumping well, the sucker rod is connected with a polished rod, the oil pumping well is connected with an oil well to play a role in power transmission, and 80% of underground oil fields are intensively distributed in a shallow layer (<2000 m) and a middle deep layer (2000 m-3500 m), so that a plurality of sucker rods can be connected and connected only by a large number of sucker rod couplings, and the sucker rod coupling with good comprehensive performance have important significance to the oil exploitation industry.
In the chinese patent database, the patent name "a multi-coating anticorrosion carbon fiber sucker rod" is disclosed, application publication date is 20200901, application publication number is CN 111608593A's patent, the device includes sucker rod male joint, sucker rod female joint, first screw thread bulge, second screw thread bulge, rotates cover, first screw hole, second screw hole, round platform portion, location taper groove. The device ensures the coaxiality of the male head of the sucker rod and the female head of the sucker rod to at least a certain extent by arranging the clamping of the circular truncated cone part and the positioning conical groove and utilizing the taper fit, and is provided with the rotating sleeve, so that a first threaded hole and a second threaded hole on the rotating sleeve are respectively screwed with the male head of the sucker rod and a first threaded bulge and a second threaded bulge on the female head of the sucker rod, and when the rotating sleeve rotates, the first threaded bulge and the second threaded bulge move relatively, so that the male head of the sucker rod and the female head of the sucker rod can coaxially move relatively, and the male head of the sucker rod and the female head of the sucker rod can be quickly connected; the device is at the oil recovery in-process, the sucker rod need carry out up-and-down reciprocating motion in the direction of height, because the well is inclined, crude oil resistance, the influence of factors such as frictional force of sucker rod string and oil pipe inner wall, the sucker rod will constantly receive tensile, compression, complicated alternating load such as crooked and additional moment of torsion, and take place sucker rod and coupling screw thread looseness and dropout, even sucker rod fracture's trouble, make the sucker rod fall into the oil well, cause the accident in the pit, the oil well is forced to be shut down, seriously influence the production efficiency in oil field, the manufacturing cost in oil field has been increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to overcome the defects in the prior art, solve the technical problems of easy twist-off and high production cost of the sucker rod in the prior art and provide the anti-torsion sucker rod which has good anti-torsion performance, long service life and low production cost.
The purpose of the invention is realized as follows: an anti-torsion sucker rod comprises a sucker rod body, wherein one end of the sucker rod body is connected with an upper coupling, an accommodating cavity is formed in the outward end of the upper coupling, a plurality of ball grooves are distributed in the upper coupling where the accommodating cavity is located along the circumferential direction, the ball groove is rotatably connected with a ball, the containing cavity is connected with a lower coupling, the lower coupling is provided with a clamping groove matched with the ball, the upper coupling is connected with a sliding sleeve in a sliding way, the sliding sleeve is provided with a limited step corresponding to the ball, an extension spring is arranged between the sliding sleeve and the upper coupling, one end of the extension spring is connected with the upper coupling, the other end of the extension spring is abutted against the limiting step, the sliding sleeve on the outward side of the limiting step is provided with a clamping groove, when the sliding sleeve compresses the extension spring, the ball can block in the joint inslot, go up the outside one end of coupling and still be connected with the solid fixed ring that is used for restricting the sliding sleeve.
When the invention is connected, the lower coupling is connected to a sucker rod, the upper coupling is connected to another sucker rod, the sliding sleeve is pushed towards the direction of the sucker rod, the sliding sleeve drives the limit step to move, the limit step compresses the expansion spring to be far away from the ball, when the clamping groove moves to the position of the ball along with the sliding sleeve, the ball is not limited by the limit step, the ball slightly moves upwards and is clamped in the clamping groove, the lower coupling of another sucker rod is inserted into the accommodating cavity, the ball is clamped in the ball groove, then the sliding sleeve is loosened, the restoring force of the expansion spring pushes the sliding sleeve to return to the initial position, the limit step props against the ball again, the ball is clamped between the ball groove and the limit step, then the fixing ring is screwed, the sliding sleeve is fixed by the fixing ring, the connection of the lower coupling and the upper coupling is finished, namely the connection of the two sucker rods is finished, and the steps are repeated in turn, according to the requirement of oil extraction depth, all the sucker rods are mutually connected, so that the connection of a plurality of sucker rods is realized; when oil extraction is carried out, the sucker rod carries out up-and-down reciprocating motion in the oil pumping process, the sucker rod bears the action of larger torsional alternating load under the well, the upper sucker rod and the lower sucker rod transmit torque load to the lower coupling and the upper coupling, the sliding sleeve and the ball groove form a ball rotating space, a plurality of balls rotate along the ball groove, the torque load is absorbed by the balls and is transmitted and attenuated, and the instantaneous torsional force borne between the upper sucker rod and the lower sucker rod is buffered; the stable and efficient work among a plurality of sucker rods is realized; the invention has the advantages that the lower coupling and the upper coupling are conveniently connected under the action of the sliding sleeve and the expansion spring, the instantaneous torsion between the lower coupling and the upper coupling is effectively absorbed and weakened under the combined action of the balls, the ball grooves and the sliding sleeve, the structure is reliable, the stability is good, the sucker rod is not easy to break, the use cost is low, and the invention can be applied to the connection work of the sucker rod.
In order to realize torsion resistance of the sucker rod, an installation cavity is arranged in the lower coupling, a lower buffer assembly is arranged in the installation cavity, the lower buffer assembly comprises a lower buffer rod which is rotatably connected in the installation cavity, a lower boss is arranged at one end of the lower coupling, which is far away from the sucker rod, the lower buffer rod is abutted against the lower boss, and a lower extension rod which can extend out of the lower coupling is arranged on the lower buffer rod; go up the connecting chamber that the inside one end of coupling was opened and is had and hold the chamber and be linked together, connect the chamber and hold and be equipped with the boss on the last coupling between the chamber, it is equipped with the buffering subassembly to connect the intracavity, go up the buffering subassembly including rotationally connecting the last buffer beam in connecting the intracavity, go up the buffer beam and contradict on last boss, it can stretch into the last extension rod that holds the intracavity to be equipped with on the buffer beam, it has the spread groove to open on the extension rod, but extension rod down can insert in the spread groove.
In order to realize going up coupling and lower coupling firm in connection, the spread groove in-connection has the joint sleeve, a plurality of elasticity latch has been arranged towards the one end that holds the chamber to the joint sleeve, it has the draw-in groove to open on the extension pole of downwardly extending, when the extension pole of downwardly extending inserts in the spread groove, elasticity latch joint is in the draw-in groove.
In order to realize that the buffer rod is rotatable, it has last spout to connect to open on the last coupling at chamber place, rotationally be connected with in the spout and go up the rotation seat, it has last through-hole to go up to rotate to open on the seat, go up buffer rod slidable and connect in last through-hole, go up to rotate and be equipped with spacing boss on the last buffer rod between seat and the last extension rod, go up spacing boss and can contradict on last rotation seat.
In order to realize that the upper buffer rod can move in the connecting cavity, the upper buffer rod is sleeved with an upper buffer spring, one end of the upper buffer spring is abutted on the upper rotating seat, and the other end of the upper buffer spring is abutted on the upper buffer rod.
In order to realize down the buffer beam rotatable, it has lower spout to open on the lower coupling at installation cavity place, rotationally be connected with down the rotation seat in the spout down, it has lower through-hole to open on the lower rotation seat, buffer beam slidable connects in the through-hole down, is equipped with down spacing boss down on the lower buffer beam between rotation seat and the lower extension rod, and spacing boss can contradict down on the rotation seat down.
In order to realize that the lower buffer rod can move in the installation cavity, a lower buffer spring is sleeved on the lower buffer rod, one end of the lower buffer spring is abutted on the lower rotating seat, and the other end of the lower buffer spring is abutted on the lower buffer rod.
In order to further fix the sliding sleeve, the upper coupling is further in threaded connection with an anti-drop ring, and the sliding sleeve is arranged between the anti-drop ring and the fixing ring.
In order to realize sealing, one side of the upper coupling, which is opposite to the sliding sleeve, is provided with a first sealing groove, a first sealing ring is connected in the first sealing groove, and the first sealing ring is arranged between the sliding sleeve and the upper coupling.
In order to realize sealing, the upper coupling where the accommodating cavity is located is further provided with at least one second sealing groove, and a second sealing ring is connected in the second sealing groove.
Drawings
FIG. 1 is a schematic structural view of an upper coupling in the present invention.
FIG. 2 is a schematic view of the structure of the lower collar of the present invention.
FIG. 3 is a schematic view showing the structure of the upper and lower coupling of the present invention when they are coupled to both ends of a sucker rod, respectively.
FIG. 4 is a schematic diagram of the structure of two sucker rods connected via upper and lower coupling.
Fig. 5 is a partial enlarged view of a portion a in fig. 4.
FIG. 6 is a schematic view of the structure of the clamping sleeve of the present invention.
In the figure: 1 sucker rod body, 2 go up the coupling, 201 hold the chamber, 202 ball groove, 203 ball, 204 solid fixed ring, 205 connection chamber, 206 go up the boss, 207 go up the spout, 208 seal groove one, 209 seal groove two, 3 coupling down, 301 draw-in groove, 302 installation cavity, 303 boss down, 304 lower spout, 4 sliding sleeve, 401 spacing rank, 402 joint groove, 5 expanding spring, 6 go up buffering subassembly, 601 last buffer beam, 601a go up spacing boss, 602 go up the extension rod, 603 spread groove, 604 joint cover, 604a elasticity latch, 605 goes up the seat of rotating, 605a goes up the through-hole, 606 goes up buffer spring, 7 lower buffering subassembly, 701 buffer beam down, 701a lower spacing boss, 702 lower extension rod, 702a joint tooth's socket, 703 lower seat of rotating, 703a lower through-hole, 704 lower buffer spring, 8 anticreep, 9 sealing washer one, 10 two sealing washers.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
An anti-torsion sucker rod as shown in fig. 1 to 6 comprises a sucker rod body 1, wherein one end of the sucker rod body 1 is connected with an upper coupling 2, the outward end of the upper coupling 2 is provided with a containing cavity 201, the upper coupling 2 where the containing cavity 201 is located is circumferentially provided with a plurality of ball 203 grooves 202, balls 203 are rotatably connected in the ball 203 grooves 202, a lower coupling 3 is connected in the containing cavity 201, the lower coupling 3 is provided with a clamping groove 301 which can be matched with the balls 203, the upper coupling 2 is slidably connected with a sliding sleeve 4, the sliding sleeve 4 is provided with a limiting step 401 opposite to the balls 203, an extension spring 5 is arranged between the sliding sleeve 4 and the upper coupling 2, one end of the extension spring 5 is connected to the upper coupling 2, the other end of the extension spring 5 is abutted against the limiting step 401, the sliding sleeve 4 on the outward side of the limiting step 401 is provided with a clamping groove 402, when the sliding sleeve 4 compresses the extension spring 5, the ball 203 can be clamped into the clamping groove 402, and the outward end of the upper coupling 2 is also connected with a fixing ring 204 for limiting the sliding sleeve 4; a mounting cavity 302 is arranged in the lower coupling 3, a lower buffer assembly 7 is arranged in the mounting cavity 302, the lower buffer assembly 7 comprises a lower buffer rod 701 which is rotatably connected in the mounting cavity 302, a lower boss 303 is arranged at one end, far away from the sucker rod, of the lower coupling 3, the lower buffer rod 701 is abutted against the lower boss 303, and a lower extension rod 702 which can extend out of the lower coupling 3 is arranged on the lower buffer rod 701; the inner end of the upper coupling 2 is provided with a connecting cavity 205 communicated with the accommodating cavity 201, the upper coupling 2 between the connecting cavity 205 and the accommodating cavity 201 is provided with an upper boss 206, an upper buffer assembly 6 is arranged in the connecting cavity 205, the upper buffer assembly 6 comprises an upper buffer rod 601 rotatably connected in the connecting cavity 205, the upper buffer rod 601 props against the upper boss 206, the upper buffer rod 601 is provided with an upper extension rod 602 capable of extending into the accommodating cavity 201, the upper extension rod 602 is provided with a connecting groove 603, the lower extension rod 702 can be inserted into the connecting groove 603, the connecting groove 603 is internally connected with a clamping sleeve 604, one end of the clamping sleeve 604 facing the accommodating cavity 201 is provided with a plurality of elastic clamping teeth 604a, the lower extension rod 702 is provided with a clamping tooth groove 702a, and when the lower extension rod 702 is inserted into the connecting groove 603, the elastic clamping teeth a are clamped in the clamping tooth groove 702 a; an upper sliding groove 207 is formed in an upper coupling 2 where a connecting cavity 205 is located, an upper rotating seat 605 is rotatably connected in the upper sliding groove 207, an upper through hole 605a is formed in the upper rotating seat 605, an upper buffer rod 601 is slidably connected in the upper through hole 605a, an upper limiting boss 601a is arranged on the upper buffer rod 601 between the upper rotating seat 605 and an upper extension rod 602, the upper limiting boss 601a can abut against the upper rotating seat 605, an upper buffer spring 606 is sleeved on the upper buffer rod 601, one end of the upper buffer spring 606 abuts against the upper rotating seat 605, and the other end of the upper buffer spring 606 abuts against the upper buffer rod 601; the lower hoop 3 where the installation cavity 302 is located is provided with a lower chute 304, a lower rotating base 703 is rotatably connected in the lower chute 304, a lower through hole 703a is formed in the lower rotating base 703, the lower buffer rod 701 is slidably connected in the lower through hole 703a, a lower limiting boss 701a is arranged on the lower buffer rod 701 between the lower rotating base 703 and the lower extension rod 702, the lower limiting boss 701a can abut against the lower rotating base 703, a lower buffer spring 704 is sleeved on the lower buffer rod 701, one end of the lower buffer spring 704 abuts against the lower rotating base 703, and the other end of the lower buffer spring 704 abuts against the lower buffer rod 701; the upper coupling 2 is also in threaded connection with an anti-drop ring 8, and the sliding sleeve 4 is arranged between the anti-drop ring 8 and the fixing ring 204; one side of the upper coupling 2, which is opposite to the sliding sleeve 4, is provided with a first sealing groove 208, a first sealing ring 9 is connected in the sealing groove, and the first sealing ring 9 is arranged between the sliding sleeve 4 and the upper coupling 2; the upper coupling 2 where the accommodating cavity 201 is located is further provided with at least one second sealing groove 209, and a second sealing ring 10 is connected in the second sealing groove 209.
The two ends of a sucker rod body 1 of the invention are respectively in threaded connection with an upper coupling 2 and a lower coupling 3, when the connection is carried out, the upper coupling 2 is connected to a sucker rod, the lower coupling 3 is connected to another sucker rod, a sliding sleeve 4 is pushed towards the direction of the sucker rod, the sliding sleeve 4 drives a limiting step 401 to move, the limiting step 401 compresses a telescopic spring 5 to be far away from a ball 203, when a clamping groove 402 moves to the position of the ball 203 along with the sliding sleeve 4, the ball 203 is not limited by the limiting step 401 any more, the ball 203 slightly moves upwards and is clamped into the clamping groove 402, the lower coupling 3 of another sucker rod is inserted into a containing cavity 201, a lower extension rod 702 extends into a connecting groove 603, an elastic clamping tooth 604a slightly deforms inwards, when the ball 203 is clamped into a groove 202 of the ball 203, the elastic clamping tooth 604a is just clamped into the clamping tooth groove 702a, and an upper buffer spring tooth socket 606 and a lower buffer spring 704 are slightly compressed and deformed, the spring restoring forces of the upper buffer spring 606 and the lower buffer spring 704 are slightly stretched towards opposite directions, so that the elastic latch 604a is stable in the latch groove 702a and cannot move, then the sliding sleeve 4 is loosened, the restoring force of the telescopic spring 5 pushes the sliding sleeve 4 to return to the initial position, the limiting step 401 props against the ball 203 again, the ball 203 is clamped between the ball 203 groove 202 and the limiting step 401, the fixing ring 204 and the anti-release ring 8 are screwed, the sliding sleeve 4 is fixed between the fixing ring 204 and the anti-release ring 8, the connection of the lower coupling 3 and the upper coupling 2 is completed, namely the connection of two sucker rods is completed, the steps are repeated in sequence, the sucker rods are connected with each other according to the oil extraction depth requirement, and the connection of a plurality of sucker rods is realized; when the invention is used for oil extraction, the sucker rod performs up-and-down reciprocating motion in the oil pumping process, the sucker rod can bear large torsional alternating load action under the well, the upper sucker rod and the lower sucker rod transmit the torque load to the lower coupling 3 and the upper coupling 2, the sliding sleeve 4 and the ball 203 groove 202 form a rotating space of the ball 203, a plurality of balls 203 rotate along the ball 203 groove 202, the torque load is absorbed by the ball 203 and is transmitted and attenuated, meanwhile, the upper coupling 2 and the lower coupling 3 can transmit part of the torque to the upper rotating seat 605 and the lower rotating seat 703 through the upper extension rod 602 and the lower extension rod 702, so that the upper rotating seat 605 and the lower rotating seat 703 respectively rotate in the upper sliding groove 207 and the lower sliding groove 304, the torsion is further attenuated and dispersed, the instant torsion force borne between the upper sucker rod and the lower sucker rod is buffered, and the torsion resistance protection of the sucker rod, the upper coupling 2 and the lower coupling 3 is realized, finally, stable and efficient work among a plurality of sucker rods is realized; the upper coupling 2 and the lower coupling 3 are arranged, so that the connection of a plurality of sucker rods is convenient, and the use is convenient; the combined action of the balls 203, the ball 203 grooves 202, the sliding sleeve 4 and the extension spring 5 effectively absorbs and attenuates the instantaneous torsion between the lower coupling 3 and the upper coupling 2, and the sucker rod has the advantages of reliable structure, good stability, difficult fracture and low use cost; go up the setting of buffering subassembly 6 and buffering subassembly 7 down, make coupling 2 and lower coupling 3 connect reliably, be difficult to the pine and take off, and further promote the antitorque performance of sucker rod, long service life can be applied to in the connection work of sucker rod.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts based on the disclosed technical solutions, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (10)
1. The utility model provides a torsion resistant sucker rod, includes the sucker rod body, its characterized in that: one end of the sucker rod body is connected with an upper coupling, an accommodating cavity is formed in the outward end of the upper coupling, a plurality of ball grooves are formed in the upper coupling where the accommodating cavity is located along the circumferential direction, balls are rotatably connected in the ball grooves, a lower coupling is connected in the accommodating cavity, a clamping groove matched with the balls is formed in the lower coupling, a sliding sleeve is slidably connected to the upper coupling, a limiting step is formed in the sliding sleeve relative to the balls, a telescopic spring is arranged between the sliding sleeve and the upper coupling, one end of the telescopic spring is connected to the upper coupling, the other end of the telescopic spring is abutted to the limiting step, a clamping groove is formed in the sliding sleeve on one outward side of the limiting step, when the telescopic spring is compressed by the sliding sleeve, the balls can be clamped into the clamping groove, and the outward end of the upper coupling is further connected with a fixing ring used for limiting the sliding sleeve, be equipped with the installation cavity in the hoop down, be equipped with down the buffering subassembly in the installation cavity, the buffering subassembly is including rotationally connecting the lower buffer beam in the installation cavity down, the one end of keeping away from the sucker rod of lower hoop is equipped with down the boss, and lower buffer beam contradicts under on the boss, be equipped with the outer downwardly extending pole of coupling under can stretching on the buffer beam down.
2. A torsion resistant sucker rod according to claim 1 wherein: go up the connecting chamber that the inside one end of coupling was opened and is had and hold the chamber and be linked together, connect the chamber and hold and be equipped with the boss on the last coupling between the chamber, it is equipped with the buffering subassembly to connect the intracavity, go up the buffering subassembly including rotationally connecting the last buffer beam in connecting the intracavity, go up the buffer beam and contradict on last boss, it can stretch into the last extension rod that holds the intracavity to be equipped with on the buffer beam, it has the spread groove to open on the extension rod, but extension rod down can insert in the spread groove.
3. A torsion resistant sucker rod according to claim 2 wherein: the coupling has the joint cover in the spread groove, a plurality of elasticity latch has been arranged towards the one end that holds the chamber to the joint cover, it has the draw-in groove to open on the extension pole of downwardly extending, when the extension pole of downwardly extending inserted in the spread groove, elasticity latch joint was in the draw-in groove.
4. A torsion resistant sucker rod according to claim 3 wherein: last coupling at connection chamber place is gone up to open has the spout, it rotationally is connected with last rotation seat in the spout to go up, it has last through-hole to go up to rotate to open on the seat, go up buffer bar slidable and connect in last through-hole, go up to rotate and be equipped with spacing boss on the last buffer bar between seat and the last extension rod, go up spacing boss and can contradict on last rotation seat.
5. A torsion resistant sucker rod according to claim 4 wherein: the upper buffer rod is sleeved with an upper buffer spring, one end of the upper buffer spring abuts against the upper rotating seat, and the other end of the upper buffer spring abuts against the upper buffer rod.
6. A torsion resistant sucker rod according to claim 3 wherein: open on the lower coupling at installation cavity place has lower spout, rotationally be connected with down the rotation seat in the spout down, it has lower through-hole to open on the lower rotation seat, down buffer beam slidable connects in lower through-hole, is equipped with down spacing boss down on the lower buffer beam between rotation seat and the lower extension beam, and spacing boss can contradict down on rotating the seat down.
7. A torsion resistant sucker rod according to claim 6 wherein: the lower buffer rod is sleeved with a lower buffer spring, one end of the lower buffer spring abuts against the lower rotating seat, and the other end of the lower buffer spring abuts against the lower buffer rod.
8. A torsion resistant sucker rod according to claim 5 wherein: the upper coupling is further connected with an anti-drop ring in a threaded mode, and the sliding sleeve is arranged between the anti-drop ring and the fixing ring.
9. A torsion resistant sucker rod according to claim 8 wherein: one side of the upper coupling, which is opposite to the sliding sleeve, is provided with a first sealing groove, a first sealing ring is connected in the first sealing groove, and the first sealing ring is arranged between the sliding sleeve and the upper coupling.
10. A torsion resistant sucker rod according to any one of claims 1 to 9 wherein: the upper coupling of the accommodating cavity is further provided with at least one second sealing groove, and a second sealing ring is connected in the second sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011171725.9A CN112227963B (en) | 2020-10-28 | 2020-10-28 | Anti-torsion sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011171725.9A CN112227963B (en) | 2020-10-28 | 2020-10-28 | Anti-torsion sucker rod |
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| Publication Number | Publication Date |
|---|---|
| CN112227963A CN112227963A (en) | 2021-01-15 |
| CN112227963B true CN112227963B (en) | 2022-07-05 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106394A (en) * | 1979-02-09 | 1980-08-15 | Kernforschungsanlage Juelich | Method of operating absorbing rod in pebble bed reactor * driving section therefor |
| CN102828699A (en) * | 2012-09-21 | 2012-12-19 | 山东墨龙石油机械股份有限公司 | Anti-torsion sucker rod |
| CN202882788U (en) * | 2012-10-24 | 2013-04-17 | 济源市石油机械有限公司 | Rotary sucker rod coupling |
| CN203822183U (en) * | 2014-05-22 | 2014-09-10 | 东营宝世达油田装备研究所 | Rotary abrasion resistant coupling of hollow sucker rod |
| CN105625953A (en) * | 2016-03-07 | 2016-06-01 | 江苏新海石化有限公司 | Sucker rod with torsion resisting function |
| CN205638265U (en) * | 2016-04-07 | 2016-10-12 | 山东高原圣隆抽油杆有限公司 | Prevent turning round and cup joint sucker rod |
-
2020
- 2020-10-28 CN CN202011171725.9A patent/CN112227963B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106394A (en) * | 1979-02-09 | 1980-08-15 | Kernforschungsanlage Juelich | Method of operating absorbing rod in pebble bed reactor * driving section therefor |
| CN102828699A (en) * | 2012-09-21 | 2012-12-19 | 山东墨龙石油机械股份有限公司 | Anti-torsion sucker rod |
| CN202882788U (en) * | 2012-10-24 | 2013-04-17 | 济源市石油机械有限公司 | Rotary sucker rod coupling |
| CN203822183U (en) * | 2014-05-22 | 2014-09-10 | 东营宝世达油田装备研究所 | Rotary abrasion resistant coupling of hollow sucker rod |
| CN105625953A (en) * | 2016-03-07 | 2016-06-01 | 江苏新海石化有限公司 | Sucker rod with torsion resisting function |
| CN205638265U (en) * | 2016-04-07 | 2016-10-12 | 山东高原圣隆抽油杆有限公司 | Prevent turning round and cup joint sucker rod |
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| CN112227963A (en) | 2021-01-15 |
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